Function pow

std/math/src/main/float.rs:46–51

(x: f64, y: f64)

#[plugin_fn]
fn pow(x: f64, y: f64) -> Result<f64> {
    let r = libm::pow(x, y);
    // libm yields NaN on a domain error such as a negative base with a fractional exponent.
    if r.is_nan() && !x.is_nan() && !y.is_nan() { return Err(dom()); }
    Ok(r)
}

// Optional second positional `base`, matching `math.log(x[, base])`.
#[plugin_fn]